Answer:
Phosphoric acid is a good substitute for muriatic acid and in most situations will clean surfaces just as well with less risk. Phosphoric acid is a main ingredient in many commercial grout and concrete cleaners that are readily available to consumers.
Explanation:
39 taking as little medication as possible
Food certainly foods they eat
Answer: The integumentary system helps the immune system by The skin acts as a barrier to keep out pathogens (B)
Explanation: